What are the advantages of lattice ball mills?

Who said that lattice ball mills use rolling bearings instead of plain bearings (several bearings can be used, such as: sliding, rolling, hydrostatic, etc.)?

Who said that the lattice ball mill adopts a cone design (that is only the cone of the cone ball mill, and the lattice ball mill can use a cone or a straight cylinder)? The cone ball mill was invented by our Zhaoyuan people, and the inventor is Yang Tongsui! You can check, now it is our factory technical consultant!

Who said it has a grooved ring liner! (The lattice type ball mill only adds a grating plate and a guide rib plate (commonly known as a guide rib) at the discharge end, and there are many long holes in the lattice plate, with a slight taper).

Who said he went with a monolithic rack? (The ball mill can be made of a monolithic steel frame or a cement foundation, no matter what type it is).

Whether it is a straight cylinder or a conical ball mill, the internal slurry liquid level of the lattice type ball mill is low (all the statements are for the overflow type), plus the lattice plate and guide bar, the slurry mixture that reaches the grinding fineness is turned up by the guide bar and flows out through the blades of the discharge core, so that the slurry is discharged smoothly, and the internal slurry liquid level is relatively low, which is conducive to controlling the particle size of ore feeding and grinding, and it is not easy to produce over-crushing phenomenon, the steel ball will not run out of the discharge port, and the processing capacity is relatively high, etc.!

Of course, no one says that the overflow type is not good, each has its own advantages, and there is no need to choose what kind of ball mill according to the beneficiation process.

The large-scale ball mills at home and abroad are all overflow type.

Administrator, do you understand? Are you a jack of all trades? Don't recommend it if you don't understand, you think you know everything! I'm a ball mill manufacturer, so I might as well know it!

Angry people, do you know it???

The processing capacity is large, but the ductile particle size is coarse.

Summary. Concentric arrangement, the slurry flows along the lattice, the lattice hole is seriously worn, and the slurry is easy to reflow. Radiation arrangement, the ore particles are instantly subjected to centrifugal force through the lattice plate, and move outward along the hole, which is easy to cause blockage.

Oblique arrangement, which overcomes the shortcomings of concentric and radial arrangement, is widely adopted.

Concentric arrangement, the slurry flows along the lattice, the early pure lattice hole wear is serious, and the slurry is easy to reflow. Radiation arrangement, the ore particles are instantly subjected to centrifugal force through the lattice plate, and move outward along the hole, which is easy to cause blockage. Oblique arrangement, which overcomes the lack of comic points of concentric and radial arrangement, is widely adopted.

Lattice ball mill is a kind of ball mill, lattice ball mill production capacity is high, compared with the same specification of overflow ball mill, the production energy can be increased by about 20%-30%, is a kind of mineral processing equipment commonly used in the concentrator, effectively understand the structure and principle of the lattice ball mill, will effectively improve the production efficiency of the concentrator. The working principle of lattice ball mill: the material enters the first bin of the mill uniformly by the feeding device through the feeding hollow shaft spiral, which has a stepped lining plate or corrugated lining plate, which is equipped with steel balls of different specifications, and the cylinder rotates to generate centrifugal force to bring the steel balls to a certain height and fall, which has a heavy impact and grinding effect on the materials.

After the material reaches coarse grinding in the first bin, it enters the second bin lead brigade through a single-layer bin plate, which is inlaid with a flat lining plate and has a steel ball in it to further grind the material. The powder is discharged through the discharge grate to complete the grinding operation. Structural characteristics of lattice ball mill:

The lattice ball mill is composed of feeding department, discharging department, rotary department, transmission part (reducer, small transmission branch bridge gear, motor, electronic control) and other main parts. The hollow shaft is made of steel castings, the lining can be replaced, the slewing gear is processed by casting gear hobbing, and the cylinder is inlaid with a wear-resistant lining plate, which has good wear resistance. This machine runs smoothly and works reliably.

According to the material and discharge method, dry lattice ball mill and wet lattice ball mill can be selected.

1. When the density of the grinding body is large, the surface is smooth and non-sticky, non-rupture and non-deformation, the Huaizheng production capacity of the lattice ball mill is high.

2. The production capacity of spherical and long cylindrical grinding bodies is higher than that of cube, disc, conical and other grinding bodies.

3. Filling rate: When the filling rate is within a reasonable range and the loaded grinding volume can be used for effective work, the high filling rate will have a large production capacity. When the grinding body filling rate of each bin is presented and distributed in the accompaniment and subtraction mode, it is beneficial to increase the output.

If it is distributed in an incremental way, it is beneficial to improve the fineness.

4. Grinding body gradation: gradation includes average ball diameter, maximum ball diameter, minimum ball diameter, steel ball progression, and the output of the lattice ball mill is significantly higher when the grading is reasonable. When the ball is cleared with a reasonable system, the high production time of the lattice ball mill can be maintained for a long time.

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The advantage of the lattice ball mill is that the ore speed is fast, which can reduce the over-crushing of the ore, and at the same time can increase the output per unit volume, which is higher than the output of the overflow ball mill. Its disadvantage is that the structure is complex, it is easy to block the grating board when the mine is mine, and it is difficult and complicated to overhaul.

The advantage of the overflow ball mill is that the structure is simple, the maintenance is convenient, and the large ore and steel balls are not easy to be discharged due to the annoying threads cast in the discharge pipe. The disadvantage is that the production capacity per unit volume is low, the processing capacity is low, and the crushing phenomenon is easy to occur.

The choice of ball mill should be based on different operation needs, if there are any questions, you can consult Henan Hongxing Machine, the production of ball mill for 30 years, can be customized according to the different operation requirements of customers.

Lattice type ball mill, its discharge method is through the form of sieve plate. The overflow type is without a sieve plate (with an end liner and a grinding head). overflow type; The material level of the ball mill is higher than the discharge port, and it automatically overflows, which is called overflow type.

Advantages of ball mills:

1.Compared with traditional ball mills, the motor power of the high-tech energy-saving ball mill can be reduced by 18-25%, lubricating oil by 70%, cooling water by 90%, and comprehensive energy saving by more than 20%.

2.Under normal circumstances, there is no need to replace the main bearing for ten years, saving a lot of maintenance costs, 3Labor and time saving; The main bearing lubrication is grease, which is convenient and clean, and eliminates heavy metal pollution;

4.The use of this product does not change the technical parameters of the production process, and does not change the assembly size and installation size of the mill.

5.It is suitable for both the energy-saving technical transformation of existing mills and the manufacture of new mills.

Advantages of ball mills.

1) Strong adaptability to materials, continuous production, large production capacity, can meet the requirements of large-scale industrial production;

2) The crushing ratio is large, up to more than 300, and it is easy to adjust the fineness of the grinding product;

3) Suitable for dry and wet operations;

4) Simple and sturdy structure, reliable operation, simple maintenance and management, and high operation rate;

5) Strong sealing, can be operated under negative pressure.

a. Strong adaptability to the physical properties of materials (particle size, moisture, hardness, etc.);

b. The crushing ratio is large, and the particle gradation and fineness are easy to adjust;

c. Simple structure, simple maintenance, reliable operation;

dCan adapt to different operation requirements: such as dry or wet production, open or closed circuit system, single grinding or drying and drying operations, etc.;

eWearing parts are easy to inspect and replace. The disadvantages are low grinding efficiency, high power consumption, bulky equipment, high grinding body consumption and high noise. With the development of bed grinding technology, there is a tendency to be replaced by roller mills.

It is easy to maintain and has a high operating rate.

Lattice Ball Mill: The lattice ball mill is equipped with a lattice liner on the discharge side, hence the name. There are many 7mm-20mm discharge holes on the lattice board.

The material that has been ground by the ball mill passes through a lattice liner on the side of the lattice near the discharge end, which is fitted with a mine hoist, which is a radial rib that divides the lattice plate into several sector-shaped chambers leading to the hollow journal between the lattice plate and the end cap. When the ball mill rotates, the radial ridges play the role of lifting the slurry, lifting the slurry discharged from the small holes in the lattice plate to the hollow journal of the discharge, and discharging it from the ball mill through the hollow journal. 、

Overflow type ball mill: The overflow type ball mill is not equipped with a lattice liner on the discharge side, but on the inner surface of the hollow journal bushing at the discharge end, a spiral blade with the opposite direction of spiral direction and the rotation direction of the mill is installed to prevent the water balls or coarse material ore blocks from being discharged together with the slurry. The discharge of the overflow ball mill is due to the slurry itself being higher than the lower edge of the hollow journal bushing, which is the reason for the name of the overflow ball mill.

When buying, how to choose a two-ball mill?

1. Select according to the particle size of mineral discharge

Generally, the upper limit of the particle size of the grinding product of the lattice ball mill is generally used, so it is commonly used in the first stage of grinding, and it is often closed circuit with the spiral classifier.

The particle size of the grinding product of the overflow ball mill is generally smaller, which is suitable for concentrate re-grinding operation, and can be used as a first-stage grinding or second-stage grinding operation, and can obtain finer qualified products.

2. Choose according to the size of production capacity

The lattice ball mill relies on the grating plate for forced ore discharge, so the production capacity is higher than that of the overflow ball mill. The overflow ball mill self-flowing ore discharge, the speed is slow, the production capacity is relatively weak, in addition, because the material in the ball mill residence time is long, it is easy to over-crush.

3. Choose according to the grinding effect

The steel ball in the barrel of the lattice ball mill will be fed according to the size ratio, and when the ball mill steel ball is lifted to a certain height, the relatively low slurry surface has a large falling height on the steel ball, therefore, the impact of the steel ball on the material is stronger, the crushing effect on the ore is large, and the grinding effect will be better. The grinding efficiency of the overflow ball mill is relatively weak.

4. Choose according to the difficulty of maintenance

Due to the lack of grating configuration, the structure of the overflow ball mill is relatively simple and easy to maintain. Although the lattice ball mill has a good discharge effect because of the lattice plate, it is also easy to be blocked by the slurry because the lattice center vent, grate joint and partition plate gap of the discharge section are also easy to be blocked by the ore slurry, which increases the difficulty of maintenance operation and is inconvenient for maintenance.

1. There is a grating plate at the discharge end of the lattice ball mill, which is convenient for discharging the slurry;

2. The side of the grating plate of the energy-saving lattice ball mill close to the discharge end is equipped with a slurry lifting device, which can force the discharge and increase the production capacity;

3. The slurry liquid level of the energy-saving lattice ball mill is low, which can discharge qualified ore particles well and avoid over-crushing;

4. The slurry level is low, the resistance to ball impact is small, and the crushing effect of ore is good;

5. The lattice ball mill has a large ball load, and the ball can be placed according to the grinding effect.